Diurnal Rhythm in Appearance of Frontal Midline Theta Activity
- 1 December 1986
- journal article
- research article
- Published by Wiley in Psychiatry and Clinical Neurosciences
- Vol. 40 (4) , 609-615
- https://doi.org/10.1111/j.1440-1819.1986.tb03175.x
Abstract
It has been reported that there is a certain rhythm in the appearance of Fm.theta.. In the present study, round-the-clock changes in the appearance of Fm.theta. were analyzed. The Uchida-Kraepelin test was conducted for 5 minutes a day over a period of 3 days on 18 university students. The span of time from 08:00 to 24:00 was divided into 9 temporal points and each subject was tested at 4 different points. EEGs were recorded and the changes in the appearance of Fm.theta. were investigated. As a result, it was found that there were signs of a frequent appearance of Fm.theta. in the morning, particularly between 10:00 and 12:00. Accordingly, it was evident that Fm.theta. appears at a certain diurnal rhythm.Keywords
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